Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 29 - Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
Patents for E21B 29 - Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground (5,744)
12/2012
12/04/2012US8322435 Pressure driven system
12/04/2012US8322422 Method of removing a device in an annulus
11/2012
11/29/2012WO2012161910A2 Window joint for lateral wellbore construction and method for opening same
11/29/2012US20120298362 Window Joint for Lateral Wellbore Construction and Method for Opening Same
11/29/2012CA2831802A1 Window joint for lateral wellbore construction and method for opening same
11/28/2012CN202560138U Variable-diameter mechanical tube expander
11/28/2012CN102797428A Well abandoning tool capable of locking position
11/27/2012US8316945 Downhole swivel apparatus and method
11/22/2012WO2012158044A1 Cutting device safety valve, method and uses for severing a pipe-string-related object in a safety valve for a well
11/22/2012US20120292028 Tubular Cutting with a Sealed Annular Space and Fluid Flow for Cuttings Removal
11/22/2012US20120292027 Tubular Cutting with Debris Filtration
11/22/2012CA2834927A1 Cutting device, safety valve, method and uses for severing a pipe-string-related object in a safety valve for a well
11/22/2012CA2834693A1 Tubular cutting with a sealed annular space and fluid flow for cuttings removal
11/22/2012CA2834059A1 Tubular cutting with debris filtration
11/21/2012CN202544787U Novel oil well casing shaper
11/21/2012CN202544786U Pipe straightening sliding lock
11/21/2012CN202544785U Falling-off prevention integrated window opening tool
11/15/2012WO2012154180A1 Perforating gun assembly and method for controlling wellbore pressure regimes during perforating
11/15/2012US20120285684 Multi-position Mechanical Spear for Multiple Tension Cuts while Removing Cuttings
11/14/2012CN202531073U Repair pipe clamp for drill conductor
11/14/2012CN102777155A Shale gas bridge plug subsection completion method
11/14/2012CN101718180B Floatingly-hinged rolling variable-diameter expansion drill bit
11/13/2012US8307905 Activating mechanism
11/13/2012US8307903 Methods and apparatus for subsea well intervention and subsea wellhead retrieval
11/13/2012US8307900 Method and apparatus for performing laser operations downhole
11/13/2012US8307888 Method and apparatus for removing casing
11/13/2012CA2747138C Apparatus and method for severing a wellbore tubular
11/08/2012US20120279710 Injection drill bit
11/08/2012US20120279709 Expandable downhole casing coupling locator tool
11/08/2012US20120279706 Method and device for closing a well
11/07/2012CN102770619A Tubular assembly
11/01/2012WO2012148956A2 Flange overshot retrieval tool
11/01/2012WO2012148955A2 Flange separation and retrieval tool
11/01/2012US20120273229 Method of making and using a functionally gradient composite tool
11/01/2012US20120273212 Flange separation and retrieval tool
11/01/2012US20120273211 Subsea sensors display system and method
10/2012
10/31/2012EP2518256A1 Cutting structures for casing component drillout and earth-boring drill bits including same
10/31/2012CN202510074U Pilot milling shoe
10/30/2012US8297364 Telescopic unit with dissolvable barrier
10/26/2012WO2012145488A2 System and method for deploying a downhole casing patch
10/26/2012WO2012094488A3 Shape memory material packer for subterranean use
10/26/2012CA2795037A1 Improvements on explosive carrier end plates for charge-carriers used in perforating guns
10/25/2012US20120267116 Flange overshot retrieval tool
10/25/2012US20120267099 System and method for deploying a downhole casing patch
10/24/2012EP2513414A1 Method and device for closing a well
10/24/2012CN102747975A Deepwater turbine abandoned well cutting device
10/23/2012US8291985 Well assembly with removable fluid restricting member
10/23/2012US8291977 Oil well plug and abandonment method
10/23/2012CA2646466C Method for reducing diameter reduction near ends of expanded tubulars
10/23/2012CA2646448C Method for reducing diameter reduction near ends of expanded tubulars
10/18/2012WO2012141685A1 Opening a conduit cemented in a well
10/18/2012WO2012140512A1 Tubing reshaping method and apparatus
10/18/2012WO2012112612A3 Tubing hanger and methods for testing and sealing the tubing hanger
10/18/2012WO2012106044A3 Full gauge milling bottom hole assembly with optimal contact force and build rate capability
10/18/2012US20120261134 Wellhead wicker repair tool
10/18/2012US20120261133 Broken pipe blocker
10/18/2012CA2830927A1 Opening a conduit cemented in a well
10/17/2012EP2511468A1 A method and apparatus for communicating with a device located in a borehole
10/17/2012CN102733770A Wellhead wicker repair tool
10/11/2012WO2012138904A2 System and method for coupling a drill bit to a whipstock
10/11/2012WO2012138231A1 Cutting tool for use in fluid-filled cavities and use of the tool
10/11/2012CA2832296A1 System and method for coupling a drill bit to a whipstock
10/10/2012CN202483493U Washover pipe with spiral internal hooks
10/04/2012WO2012135101A2 Perforating gun and arming method
10/04/2012WO2012083016A3 Method and apparatus for controlled or programmable cutting of multiple nested tubulars
10/04/2012US20120247778 Completion Fluid with Friction Reduction
10/04/2012US20120247770 Methods of releasing at least one tubing string below a blow-out preventer
10/04/2012US20120247769 Selectable, internally oriented and/or integrally transportable explosive assemblies
10/03/2012CN202467732U High-temperature-resistant expansion pipe string
10/03/2012CN102713134A Device for applying an expandable skirt having application diameter control upon advance
10/03/2012CN102704882A Hydraulic forced centralizer
10/03/2012CN102704881A Reverse forging milling cutter
10/03/2012CN102704880A Fracture fixed core sleeve mill shoe
10/03/2012CN102704879A Abrasive jet processing tool for downhole accidents
10/03/2012CN102704878A Recovery deflecting device
10/03/2012CN102704843A Efficient bit of pilot hole
10/02/2012CA2681698C Optimized machining process for cutting tubulars downhole
09/2012
09/27/2012US20120241164 Method for Motion Compensation During Active Intervention Operations
09/27/2012US20120241160 Oil well improvement system
09/27/2012US20120241142 Apparatus for Deploying and Activating a Downhole Tool
09/26/2012EP2503094A1 Control line running system
09/26/2012CN202451096U Oil-water well casing mandrel
09/26/2012CN202451095U Combined type shaping and repairing device for hydraulic expanding tube
09/26/2012CN202451094U Water pressure type pipe cutter
09/26/2012CN202451093U Centering type milling shoe
09/26/2012CN202451092U Internal cutter head for drilling
09/25/2012US8272446 Method for removing a consumable downhole tool
09/25/2012US8272441 Wireless downhole tool positioning system
09/25/2012CA2666180C Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell
09/20/2012WO2012125917A1 Method and systems to sever wellbore devices and elements
09/20/2012US20120234549 Method for removing a hydrocarbon production platform from sea
09/20/2012US20120234542 Method and systems to sever wellbore devices and elements
09/20/2012CA2830262A1 Method and systems to sever wellbore devices and elements
09/19/2012EP2499329A1 Method and device for closing a well in the ground
09/19/2012CN202441300U Expansion type fracture stabilizer
09/19/2012CN202441299U Suspended fracture stabilizer
09/19/2012CN202441298U Efficient piloted mill
09/18/2012CA2757675C Ultra high pressure hydraulic sublevel pipe cutter
09/13/2012WO2012121707A1 Method and system of drilling laterals in shale formations
09/13/2012WO2012087712A3 One trip multiple string section milling of subterranean tubulars
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